spi: stm32_qspi: Add transfer_one_message() spi callback

Browse source

Add transfer_one_message() spi callback in order to use the QSPI interface
as a communication channel using up to 8 qspi lines (QSPI configured
in dual flash mode).
To enable this mode, both spi-rx-bus-width and spi-tx-bus-width must be
set to 8 and cs-qpios must be populated.

Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Link: https://lore.kernel.org/r/20220823075850.575043-3-patrice.chotard@foss.st.com
Signed-off-by: Mark Brown <broonie@kernel.org>

...

This commit is contained in:

Patrice Chotard 2022-08-23 09:58:50 +02:00 • committed by Mark Brown

parent 1d895be13a

commit a557fca630

No known key found for this signature in database

GPG key ID: 24D68B725D5487D0

1 changed files with 109 additions and 9 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

118

drivers/spi/spi-stm32-qspi.c

View file